1157456 has 10 divisors (see below), whose sum is σ = 2242602. Its totient is φ = 578720.

The previous prime is 1157449. The next prime is 1157489. The reversal of 1157456 is 6547511.

It can be written as a sum of positive squares in only one way, i.e., 1123600 + 33856 = 1060^2 + 184^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36155 + ... + 36186.

2^1157456 is an apocalyptic number.

1157456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1157456 is a deficient number, since it is larger than the sum of its proper divisors (1085146).

1157456 is an equidigital number, since it uses as much as digits as its factorization.

1157456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72349 (or 72343 counting only the distinct ones).

The product of its digits is 4200, while the sum is 29.

The square root of 1157456 is about 1075.8512908390. The cubic root of 1157456 is about 104.9948901519.

The spelling of 1157456 in words is "one million, one hundred fifty-seven thousand, four hundred fifty-six".